Setting the stitch length adjusting wheels
Service Instructions 667 - 00.0 - 04/2016 31
To set the lower stitch length adjusting wheel:
1. Position the upper stitch length adjusting wheel (2) > 3.
2. Switch the machine to short stitch length.
The button for the stitch length (1) does not light up.
If the button lights up, press button (1) again.
Fig. 19: Setting the lower stitch length adjusting wheel (2)
3. Hold the lower stitch length adjusting wheel (3) in place using the
wrench (7).
4. Loosen the screw (2).
5. Remove the lower stitch length adjusting wheel (3) from the shaft (5).
6. Carefully turn shaft (5) clockwise with a size 10 wrench until you feel
significant play on the frame for the stitch regulator gear.
7. Carefully turn shaft (5) counterclockwise with a size 10 wrench until
you no longer feel any play.
8. As soon as the frame stops moving: Remove the wrench from the
shaft (5).
9. Turn the scale (6) so that the 0 is exactly next to the adjusting mark (4).
10. Place the lower stitch length adjusting wheel (3) onto the shaft (5) and
tighten it with a wrench (7).
11. Tighten the lower stitch length adjusting wheel (3) using screw (2).
NOTICE
Property damage may occur!
Risk of machine damage if the shaft is turned too hard.
If you turn the shaft too far, parts on the stitch regulator gear may
bend or get stuck.
Turn the shaft carefully and stop as soon as you feel a slight
resistance.
(1) - Upper stitch length adjusting wheel
(2) - Screw
(3) - Lower stitch length adjusting wheel
(4) - Adjusting mark
(5) - Shaft
(6) - Scale
(7) - Wrench
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